Results 51 to 60 of about 14,645 (208)

Complexos polímero-surfactante mistos formados por mistura de dodecanoato de sódio e decanoato de sódio com celulose hidrofobicamente modificada [PDF]

open access: yes, 2005
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.As propriedades das misturas de surfactantes decanoato de sódio (SDeC) e dodecanoato de sódio (SDoD) na ausência e presença do polímero ...
SANTOS, Henrique F. X. dos
core  

Emulsion Stability of Heavy Oil with Surfactants and Nanoparticles

open access: yesImproved Oil and Gas Recovery, 2020
The recovered crude oil is often in form of an emulsion and the recovery is cut off when water to oil ratio exceeds a certain amount. The emulsions vary from water-in-oil to oil-in-water and the step that follows is to coalesce droplets to get two ...
Zainab Abdulmohsein   +2 more
doaj   +1 more source

Elution of viruses by ionic and nonionic surfactants [PDF]

open access: yesApplied and Environmental Microbiology, 1996
The ionic and nonionic surfactants sodium dodecyl sulfate and Triton X-100, respectively, eluted two viruses, phi X174 and PRD1, which were adsorbed to the ionic and nonionic binding membranes cationic polysulfone and nitrocellulose, respectively. Results indicated that complete elution was readily achieved only when combinations of surfactants and ...
B T, Fujito, C D, Lytle
openaire   +2 more sources

Viscoelasticity, morphology, and molecular diffusion in structurally controlled ternary poly(acrylic acid) and nonionic surfactant-based hydrogels

open access: yesPolymer Testing
Hydrogels are among the most promising materials for biological applications mainly because of their ability to absorb large volumes of water and carry as well as deliver biologically active substances.
Grzegorz Nowaczyk   +4 more
doaj   +1 more source

Study on Characteristics of Micelles Formed by Surfactants and Polymer Mixtures for Enhanced Oil Recovery

open access: yesChemical Engineering Transactions, 2014
The bio-degradable vegetable oil based nonionic surfactants are generally used in the oil and petrochemical industry. This publication considers two combinations of various surfactants applied in enhanced oil recovery (EOR).
R. Nagy, L. Bartha, J. Toth, Á. Vágo
doaj   +1 more source

Nonionic Surfactant Sorption onto Soil

open access: yes, 1992
Experiments in batch soil/aqueous systems were conducted to evaluate the sorption onto soil of four nonionic surfactants. At bulk solution surfactant concentration less than the respective critical micelle (aggregate) concentration (CMC or CAC), sorption
Z. Liu, R. G. Luthy, D. A. Edwards
core   +1 more source

Nonionic Surfactants in Paper Electrophoresis

open access: yesClinical Chemistry, 1960
Abstract 1. A modification of the usual paper electrophoretic procedure has been made by including in the buffer medium 0.05 per cent of certain alkylphenyl ethers of polyethylene glycol. 2. This modified procedure yields electrophoretic patterns of blood serum proteins that may be subdivided into 12 fractions— albumin, α1-
openaire   +2 more sources

EFFECT OF DODECANOL ON MIXED NONIONIC AND NONIONIC/ANIONIC SURFACTANT ADSORPTION AT THE AIR-WATER-INTERFACE

open access: yes, 1994
Neutron reflection has been used to investigate the adsorption of mixed nonionic surfactant and nonionic/ anionic surfactant mixtures containing dodecanol, at the air/water interface.
STAPLES, E   +3 more
core   +1 more source

Investigation of the anionic-zwitterionic and anionic-nonionic surfactant mixtures on enhanced oil recovery using microfluidic devices

open access: yesPetroleum Research
Surfactant flooding is one of the widely applied enhanced oil recovery methods. However, the application of a single surfactant is often insufficient to meet the demand for oil recovery.
Yafei Liu   +5 more
doaj   +1 more source

Geopolymer Carbon-Based for Ultra-Wideband Absorbent Applications

open access: yesMolecules, 2020
Dimension reduction, cost efficiency, and environmental sustainability are important factors in absorbent designs. Geopolymers represent an eco-friendly and cost-efficient solution for such applications, and the objective of this study is to develop new ...
Ioana Nicoleta Vlasceanu   +4 more
doaj   +1 more source

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